Used MG ZS EV: battery health, range and replacement cost

Battery wear, range, winter loss, replacement cost and warranty, with a source for every figure. Data checked 2026-10-18.

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Things to check

No MG ZS EV battery or charging recall is in the UK DVSA records to October 2026. check-vehicle-recalls.service.gov.uk
A revised calibration will be provided to correct the NOx emissions to ensure they fall within legal limits.
The capacity warranty only repairs the battery back to the 70% line, or replaces it with a new or remanufactured one; it does not promise an as-new battery. mg.co.uk
Where possible the excessive loss portion will be repaired, … if un-repairable the lithium-ion high voltage battery will be replaced with either a new or a remanufactured battery.
The battery warranty can be refused if anyone other than an MG dealer has opened or removed the pack. Ask about any independent battery work. mg.co.uk
Claims may not be accepted if the high voltage battery has been opened or removed from your MG vehicle by anyone other than an MG Authorised Repairer.

In the UK

44.5 kWh (2019-2021)

Model years 2019–2021

Battery type: NMCsourcedEV Database: MG ZS EV (2019-2021) · checked 2026-10-17
What the source covers
First-generation MG ZS EV, 44.5 kWh, November 2019 - October 2021
Quote: Cathode Material NMC
Usable battery: 42.5 kWhestimateEV Database: MG ZS EV (2019-2021) · checked 2026-10-17
What the source covers
First-generation MG ZS EV 44.5 kWh pack
Quote: Useable Capacity* 42.5 kWh
How we got this: EV Database marks this as its own estimate; MG gives only the 44.5 kWh total. No measured figure found.
Official range (WLTP, new): 163 misourcedRAC: MG ZS EV (2019-2021) used review · checked 2026-10-17
What the source covers
UK MG ZS EV 44.5 kWh, 2019-2021
Quote: a WLTP-rated driving range certified at 163 miles
Battery wear: 2.3% a yearestimatemeasures battery capacityGeotab EV battery health study (page labels it 2025/2026) · checked 2026-10-17
What the source covers
Geotab fleet average (not MG ZS EV-specific)
How we got this: No yearly MG ZS EV degradation figure found. Geotab's fleet average (2.3%/yr across 21 make-models) is used.
Expected health: 89% after 5 years, 77% after 10 yearsestimatestraight-line from the wear rate above; about 144 mi and 126 mi of WLTP rangeGeotab EV battery health study (page labels it 2025/2026) · checked 2026-10-17
What the source covers
Geotab fleet average (not MG ZS EV-specific)
How we got this: Our calculation: 100% minus 2.3% a year (the wear rate above), never below 50%.
Winter range loss: 22% lessestimate32°F (0°C) vs best range, compared with the range at an ideal temperatureRecurrent winter range study (2025/26) · checked 2026-10-17
What the source covers
Recurrent average across 34 EV models (not MG ZS EV-specific)
Quote: At 32F, on average, EVs retain 78% of their maximum range.
How we got this: No checkable MG ZS EV winter figure found (NAF's MG ZS EV result is not in the page text), so Recurrent's average across 34 models is used: 100 - 78 = 22%.
Battery replacement cost: No reliable figure yet
Battery warranty: 7 years or 80,000 milesestimatefrom new; covers capacity below 70%; passes to the next ownerMG Motor UK warranty terms and conditions (July 2026) · checked 2026-10-17
What the source covers
MG UK warranty for cars registered from September 2019: 7 years / 80,000 miles, battery below 70% capacity covered, transfers to new owners
Quote: The warranty transfers to each new owner so long as it has not expired.
How we got this: The current (2026) terms are cited; they cover cars registered from 1 September 2019. Some cars registered from 2024 may have 8 years / 100,000 miles (the document is unclear), so the shorter term is shown.

Long Range 72 kWh (2022-2024)

Model years 2022–2024

Battery type: NMCsourcedEV Database: MG ZS EV Long Range (UK) · checked 2026-10-17
What the source covers
UK MG ZS EV Long Range (72.6 kWh), December 2021 - July 2025
Quote: Cathode Material NMC
Usable battery: 69.9 kWhdata setOpen EV Data @32d7dc59e7 (MIT, https://github.com/KilowattApp/open-ev-data) · checked 2026-10-18
What the source covers
Open EV Data entry: MG ZS EV (2022); market not stated in the dataset
Record: id=7da9d7cf-332c-fea0-2876-fb81f47933b2 usable_battery_size=69.9
Official range (WLTP, new): 273 misourcedEV Database: MG ZS EV Long Range (UK) · checked 2026-10-17
What the source covers
UK MG ZS EV Long Range WLTP range
Quote: WLTP Ratings Range 273 mi
Battery wear: 2.3% a yearestimatemeasures battery capacityGeotab EV battery health study (page labels it 2025/2026) · checked 2026-10-17
What the source covers
Geotab fleet average (not MG ZS EV-specific)
How we got this: No yearly MG ZS EV degradation figure found. Geotab's fleet average (2.3%/yr across 21 make-models) is used.
Expected health: 89% after 5 years, 77% after 10 yearsestimatestraight-line from the wear rate above; about 242 mi and 210 mi of WLTP rangeGeotab EV battery health study (page labels it 2025/2026) · checked 2026-10-17
What the source covers
Geotab fleet average (not MG ZS EV-specific)
How we got this: Our calculation: 100% minus 2.3% a year (the wear rate above), never below 50%.
Winter range loss: 22% lessestimate32°F (0°C) vs best range, compared with the range at an ideal temperatureRecurrent winter range study (2025/26) · checked 2026-10-17
What the source covers
Recurrent average across 34 EV models (not MG ZS EV-specific)
Quote: At 32F, on average, EVs retain 78% of their maximum range.
How we got this: No checkable MG ZS EV winter figure found (NAF's MG ZS EV result is not in the page text), so Recurrent's average across 34 models is used: 100 - 78 = 22%.
Battery replacement cost: No reliable figure yet
Battery warranty: 7 years or 80,000 milesestimatefrom new; covers capacity below 70%; passes to the next ownerMG Motor UK warranty terms and conditions (July 2026) · checked 2026-10-17
What the source covers
MG UK warranty for cars registered from September 2019: 7 years / 80,000 miles, battery below 70% capacity covered, transfers to new owners
Quote: The warranty transfers to each new owner so long as it has not expired.
How we got this: The current (2026) terms are cited; they cover cars registered from 1 September 2019. Some cars registered from 2024 may have 8 years / 100,000 miles (the document is unclear), so the shorter term is shown.

All sources for this page

check-vehicle-recalls.service.gov.uk · checked 2026-10-18
EV Database: MG ZS EV (2019-2021) · checked 2026-10-17
EV Database: MG ZS EV Long Range (UK) · checked 2026-10-17
Geotab EV battery health study (page labels it 2025/2026) · checked 2026-10-17
MG Motor UK warranty terms and conditions (July 2026) · checked 2026-10-17
mg.co.uk · checked 2026-10-18
Open EV Data @32d7dc59e7 (MIT, https://github.com/KilowattApp/open-ev-data) · checked 2026-10-18
RAC: MG ZS EV (2019-2021) used review · checked 2026-10-17
Recurrent winter range study (2025/26) · checked 2026-10-17

"Estimate" means we worked the figure out or borrowed it from a similar car; open "What the source covers" to see how. Expected health is a straight-line estimate from fleet data, not a test of any one car.